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Received October 31, 2002
Accepted December 6, 2002
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Ammoxidation of Isomeric Picolines on Molybdenum Phosphate Catalyst

Chemical Technology Research Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea 1Division of Chemical Engineering, Hanbat National University, Daejeon 305-719, Korea 2Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea
chshin@chungbuk.ac.kr
Korean Journal of Chemical Engineering, March 2003, 20(2), 279-283(5), 10.1007/BF02697241
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Abstract

Ammoxidation of 2-, 3-, and 4-picolines to their nitrile compounds has been studied on an amorphous molybdenum phosphate (MoPO) catalyst with P/Mo=1.0. The overall catalytic results of this study reveal that the conversion is in the order 2-picoline>4-picoline>3-picoline, which can be rationalized neither by the steric effects nor by the thermodynamic point of view. However, the MoPO catalyst prepared here was found to be very effective for the ammoxidation reaction of picolines. Even at almost 100% conversion levels of all three picoline isomers, selectivities to their nitrile compounds on this MoPO catalyst were higher than 90% or so.

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